import babelpolyfill from 'babel-polyfill'
import Vue from 'vue'
import App from './App'
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
//import './assets/theme/theme-green/index.css'
import VueRouter from 'vue-router'
import store from './vuex/store'
import Vuex from 'vuex'
//import NProgress from 'nprogress'
//import 'nprogress/nprogress.css'
import routes from './routes'
/*import Mock from './mock'
Mock.bootstrap();
// 注释掉之后就相当于没有接口调用了，即使发送了请求也得不到响应数据
*/
import 'font-awesome/css/font-awesome.min.css'

Vue.use(ElementUI)


//NProgress.configure({ showSpinner: false });
//引入axios
import axios from 'axios';
//全局属性配置，在任意组件内可以使用this.$http获取axios对象
Vue.prototype.$http=axios;
//配置axios的全局基本路径，访问后端接口使用8080
// axios.defaults.baseURL="/api";
axios.defaults.baseURL="http://localhost:8080";

Vue.use(VueRouter)
Vue.use(Vuex)

const router = new VueRouter({
  routes
})

//=============axios的前置拦截器==========================//
//作用：每次发送axios请求之前都要执行这个业务
axios.interceptors.request.use(config=>{
  //携带token
  let token =  localStorage.getItem("token");
  if(token){
    //只要将token放到请求头，请求头的信息会随着axios请求发送到后端
    config.headers['token']=token;
  }
  return config;
},error => {
  Promise.reject(error);
})

//=============axios的后置拦截器==========================//
//作用：专门处理axios响应回来的数据。先于回调函数执行
axios.interceptors.response.use(res => {
  //后端响应的是没有登录的信息
  if (false === res.data.success && "noLogin" === res.data.msg) {
    //删除localStorage的token和logininfo
    localStorage.removeItem("token");
    localStorage.removeItem("logininfo");
    //跳转到登录页面
    router.push({path: '/login'});
  }
  return res;
},error => {
  Promise.reject(error)
})


//======================路由拦截器【拦截不到后端或不发送axios请求的请求】====================//
//路由前置拦截器：每一次经过路由的请求之前都要去执行以下逻辑
router.beforeEach((to, from, next) => {
  //NProgress.start();
  //如果访问登录页面或注册页面
  if (to.path == '/login' || to.path=='/register') {
    next();//放行
  }else {//其他页面都有判断你是否登录过
    //获取localStorage的登录信息
    let logininfo = localStorage.getItem('logininfo');
    if (logininfo){
      next();//登录过,放行
    }else {
      //没有登录过，且访问的不是登录页面或注册页面
      next({path:'/login'});//跳转到登陆页面
    }
  }
})

//路由后置拦截器：每一次通过路由的请求之后都要去执行以下逻辑
//router.afterEach(transition => {
//NProgress.done();
//});

new Vue({
  //el: '#app',
  //template: '<App/>',
  router,
  store,
  //components: { App }
  render: h => h(App)
}).$mount('#app')

